How to make Powered Keylogger log hits on Numerical Pad

The keystrokes on Numerical Pad (right side of the keyboard) are captured by Powered Keylogger as [Num 0] - [Num 9]. To see them you have to click "Hide Non-printable" button at the top of Logs Viewer window. The button is enabled by default so you have to disable it in order to see non-printable symbols which include the keys of Numpad.